the president's 20th wedding anniversary, he and mitt romney face off in the first debate. this one in denver. overnight, a conservative website released this 2007 video, getting lots of attention. it shows obama being racially divisive. the romney campaign says it's not responsible for that video's release. >>> american airlines says improperly installed clamps caused the seats to come loose during three recent flights. the airline and its pilots union have agreed to resume contract negotiations. >>> looking at today's weather. cooling down out west. mountain snow in montana. morning fog in the northeast. showers and thunderstorms from the carolinas, south to florida. >>> and finally, it may sound like a hungry teenager's dream assignment. get paid for eating fast food every, single day. >> what do you mean teenagers? it was an experiment by doctors to find out what fast food diets can do to your health. here's abc's john donvan. >> reporter: hitting the fast food drive-in for science. >> can i get five soft tacos? can i get a number four? >> reporter: over and over and ov